2018-07-01, 23:52
MPEG-H HEVC Video / 46998 kbps / 2160p / 23.976 fps / 16:9 / Main 10 Profile 5.1 High / 4:2:0 / 10 bits / HDR / BT.2020
Kodi 17.6 has no functionality to handle HDR videos.
Kodi 18 Alpha is still a work in progress, things like HDR can break.
Why there are such differences, I don't know. The video experts will have to dig into that.